Battery pack



FIG. 1 is a top perspective view of the battery pack showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a side view thereof, one side being a mirror image of the other; and,

FIG. 7 is a rear view thereof. 

The ornamental design for a battery pack, as shown and described. 